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Earnings Per Common Share | 12 Months Ended
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Dec. 31, 2024
Earnings Per Common Share |
Earnings Per Common Share | 23. Earnings Per Common Share The computations of the basic and diluted per share amounts were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the year ended December 31, |
​ |  | 2024 |  | 2023 |  | 2022 |
​ | ​ | (in millions, except per share data) |
Net income | ​ | $ | 1,597.9 | ​ | $ | 670.1 | ​ | $ | 4,797.5 | ​
Subtract: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income attributable to noncontrolling interest | ​ | ​ | 26.9 | ​ |  | 46.9 | ​ |  | 40.6 | ​
Total | ​ | $ | 1,571.0 | ​ | $ | 623.2 | ​ | $ | 4,756.9 | ​
Weighted-average shares outstanding: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | ​ | 232.0 | ​ |  | 241.3 | ​ |  | 251.1 | ​
Dilutive effects: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock options | ​ | ​ | 0.8 | ​ |  | 0.9 | ​ |  | 1.5 | ​
Restricted stock units | ​ | ​ | 2.0 | ​ |  | 2.0 | ​ |  | 2.2 | ​
Performance share awards | ​ | ​ | 0.5 | ​ |  | 0.4 | ​ |  | 0.5 | ​
Diluted | ​ | ​ | 235.3 | ​ |  | 244.6 | ​ |  | 255.3 | ​
Net income per common share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 6.77 | ​ | $ | 2.58 | ​ | $ | 18.94 | ​
Diluted | ​ | $ | 6.68 | ​ | $ | 2.55 | ​ | $ | 18.63 | ​
​ The calculation of diluted earnings per share for the years ended December 31, 2024, 2023 and 2022, excludes the incremental effect related to certain outstanding stock-based compensation grants due to their anti-dilutive effect. When a net loss is reported, our basic weighted-average shares are used to calculate diluted earnings per share, as dilutive shares would have an antidilutive effect and result in a lower loss per share.

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